Comparison of Aspheric Toric Intraocular Lenses for Micro-monovision

Launched by GUY'S AND ST THOMAS' NHS FOUNDATION TRUST · Aug 16, 2022

Keywords

ClinConnect Summary

Cataract is a condition caused by progressive clouding of the natural crystalline lens inside the eye. This leads to impairment of visual performance. This condition represents a huge disease burden and is a leading cause of reversible blindness worldwide. In the UK and the developed world, the incidence of cataract induced blindness continues to increase, secondary to an aging population and increasingly common risk factors such as diabetes. In 1950, Harold Ridley inserted an intraocular lens following cataract extraction at St Thomas' Hospital. This was the first recorded surgery of its k...

Gender

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Eligibility criteria

• Inclusion Criteria:
• • Bilateral cataract requiring surgical intervention,
• • age over 18 years
• • able to understand informed consent and the objectives of the trial,
• • not pregnant, not breast feeding
• • no previous intraocular eye surgery
• • good visual potential in both eyes
• • corneal astigmatism of 1.5 to 6 dioptres
• Exclusion Criteria:
• * Any patient with other ocular condition that might reduce visual acuity and hence confound the results such as:
• • visually impairing age-related macular degeneration
• • Advanced glaucoma
• • previous retinal vascular disorders
• • previous retinal detachment or tear
• • any visually impairing neuro-ophthalmological condition
• • any inherited retinal disorder or pathology
• • previous strabismus surgery or record of amblyopia
• • previous visually impairing CVA, TIA or other vaso-occlusive disease
• • already enrolled in another study or trial
• • instability of keratometry or biometry measurements
• • irregular astigmatism
• • previous significant trauma to eye